Power-transmitting mechanism.



No. 693,290. Patented Feb. Il', i902.

W. H. LUCAS.

PGWER TRANSMITTING MECHANISM.

` (Application led Oct. 7, 1899.) (No Model.)

i UNITED STATES PATENT OEEICE.

NVILLIAM H. LUCAS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO IIIMSELF, FREDERICK H. GLIEM, AND JOHN P. MATIIIEU, OF PHILA- DELPHIA, PENNSYLVANIA, TRADING AS LUCAS AND GLIEM MACHINE WoRKsA FIRM;

- POWER-TRA'NSMITTING MECHANISIVI.

SPECIFICATION forming part of Letters Patent No. 693,290, dated February 11, 1902. n Application filed October 7, 1899. Serial No. 732,928. (No model.) v

To all whom, it may concer-7c: y

Be it known that I, WILLIAM H. LUCAS, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain- Improvements in PoWer-Transmitting Mechanism, of which the following 'is a specification..

My invention` relates to that class of powertransmitting -and speed-regulating devices in which two shafts are arranged at right angles to each other, each shaft having a disk and one of these disks having peripheral contact with the face of the other, so that by moving it across the face of the disk toward and from the axis of the same the speed of the driven disk may be varied.

The object of my invention is to so construct such a power-transmitting device'that the degree of pressure between the two disks can be readily regulated. This object I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in Which- Figure l represents, partly in elevation and partly in section, a power-transmitting device constructed in accordance with my'invention. Fig. 2 is a transverse section on the line a a, Fig. l; and Figs. 3 and 4 are views illustrating other embodiments ofy my invention.

l and 2 represent shafts at right angles to each other, either of which shafts may be the driver and the other the driven shaft.

In the present instance We will suppose, for convenience, that the shaft l is the driver and the shaft 2 the one to be driven. Said shaft 2 has splined upon it a disk 3,which can be moved to and froon the shaft by any desired controlling device, the disk being preferably provided With a grooved hub 4 for engagement Withsaid controlling device. The shaft 1 carries a disk 5, the face of which is in Contact with the periphery of the disk 3, and said disk 5 is mounted upon the shaft l so that it can have a slight amount of longitudinal play thereon, but cannot turn independently of the shaft, this result being effected in the present instance by means of a ing this set-screwv in one direction or the other the tension of the spring 7 may be varied and the face of the disk maynbe caused to press with any desired degree of force against the periphery of the disk 3, so that the power-transmitting property of the disks may be varied to accord with the char-l acter of the Work to be performed and ready compensation for wear of either disk may be effected. It will be noted that both end bearings of the spring 7 rotate with the shaft 1. Hence there is no frictional Wearing effect upon the spring, as there would be if it bore at one end upon a rotating part and at the other end upon a fixed part.

Where simple adjustment of the disk 5 upon the shaft 1 is desired Without any provision for imparting yielding pressure to the disk, the construction shown in Fig. 3 may be adoptedthat is to say, the set-screwT 9 may simply bear upon the end of the shaft 1.

In Fig. 4 I have shown a construction in which the adjusting-screw simply turns in the disk 5 without moving longitudinally in respect thereto, the screw having a collar 10,

vadapted to a countersnnk inner end of the axial opening of the disk, and the threaded stem of the screw acting upon a nut 11, which is free to slide in the opening in the end of the shaft l. When this construction is adopted, there will be no projection of the outer end of the screw-stem 9 beyond the face of the disk 5 in any position of adjustment of the nut 1i.

Having thus1 described my invention, I claim and desire to secure by Letters Patent- 1. The combination in a power-transmitting and speed-regulating device, of a pair of shafts at a right angle to each other, a pair of disks carried by said shafts, one disk having face Contact with the periphery of the other, a hub on said face-contact disk, receiving the end of one of the shafts and having sliding connection therewith, but prevented from rotating thereon, and an adjusting screw passing through the center of the disk and accessible from the face of the sanne, substantially as specified.`

2. The combination in a power-transmitting and speed-regulating device, of a pair of shafts at a right angle to each other, a pair of disks carried by said shafts, one disk having face contact with the periphery of the other, ahub on said face-contact disk, receiving the end of one of the shafts and havingr sliding connection therewith, but prevented from rotating thereon, and a spring interposed between the shaftand a bearing within the hub, and serving to project the disk on the shaft, substantially as specified.

3. The combination in a power-transmitting and speed-regulating device, of a pair of shafts at a right angle to each other, a pair of disks carried by said shafts, one disk having face contact with the periphery of the other, a hub on said face-contact disk, receiving the end of one of the shafts and having sliding connection therewith, but prevented from rotating thereon, and aspring contained within a recess in the end of the shaft, and havingabearing within the hub, said spring serving to project the disk on the shaft, substantially as specified.

4. The combination in a power-transmitting and speed-regulating device, of a pair of shafts at a right angle io each other, a pair of disks carried by said shafts, one disk having face contact with the periphery of the other, a hub on said face-contact disk, receiving the end of one of the shafts and having sliding connection therewith, but prevented from rotating thereon, a spring contained within a recess in the end of the shaft and serving to project Jthe disk thereon, and a screw passing through the center of the disk and accessible from the face of the same, said screw serving to regulate the tension of the spring, substantially as specified.

5. The combination in power-transmitting and speed-regulating devices, of a pair of shafts at right angles to each other, a pairof disks carried by said shafts, one of said disks beinglongitudinally adjustable upon its shaft and having face contact with the periphery of the other disk, a spring contained in a recess in the end of the shaft which carries the face-contact disk, a block free to slide in said recess and bearing upon the spring, and a set-screw engaging with the disk and block and serving to adjust the latter, substantially as specified.

G. The combination in power-transmitting and speed-regulating devices, of a pair of shafts at right angles to each other, a pair of disks carried by said shafts, one of said disks being longitudinally movable on its shaft and having facecontact with the periphery of the other disk, a spring contained in a recess in the end of the shaft which carries said facecontact disk, a nut bearing upon said spring, and a screw-stem carried by the disk and engaging said nut, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' WM. Il. LUCAS. Witnesses:

F. E. BEcH'roLD, Jos. II. KLEIN. 

